feat(KaTeX): add copy-tex and mhchem for KaTeX

exampleSite/config.toml

@@ -133,8 +133,18 @@ dateFormatToUse = "2006-01-02"
   # public git repo url to link lastmod git commit only then enableGitInfo is true
   gitRepo = ""
 
-  # whether to render mathematical formulas
-  math = true
+  # mathematical formulas (KaTeX)
+  [params.math]
+    enable = true
+    block_left_delimiter = ""
+    block_right_delimiter = ""
+    inline_left_delimiter = "$"
+    inline_right_delimiter = "$"
+    # KaTeX extension copy_tex
+    copy_tex = true
+    # KaTeX extension mhchem
+    mhchem = true
+
   # whether to show link to Raw Markdown content of the post
   linkToMarkdown = true
 
@@ -159,6 +169,9 @@ dateFormatToUse = "2006-01-02"
     katex_css = ''
     katex_js = ''
     katex_auto_render_js = ''
+    katex_copy_tex_css = ''
+    katex_copy_tex_js = ''
+    katex_mhchem_js = ''
     mermaid_js = ''
     echarts_js = ''
     echarts_macarons_js = ''

exampleSite/zh/config.toml

@@ -133,8 +133,18 @@ dateFormatToUse = "2006-01-02"
   # 用于生成文章上次修改时间的公共 git 仓库路径，仅在 enableGitInfo 设为 true 时有效
   gitRepo = ""
 
-  # 是否渲染数学公式
-  math = true
+  # 数学公式 (KaTeX https://katex.org/)
+  [params.math]
+    enable = true
+    block_left_delimiter = ""
+    block_right_delimiter = ""
+    inline_left_delimiter = "$"
+    inline_right_delimiter = "$"
+    # KaTeX 插件 copy_tex
+    copy_tex = true
+    # KaTeX 插件 mhchem
+    mhchem = true
+
   # 是否在文章页面显示原始 Markdown 文档链接
   linkToMarkdown = true
 
@@ -159,6 +169,9 @@ dateFormatToUse = "2006-01-02"
     katex_css = ''
     katex_js = ''
     katex_auto_render_js = ''
+    katex_copy_tex_css = ''
+    katex_copy_tex_js = ''
+    katex_mhchem_js = ''
     mermaid_js = ''
     echarts_js = ''
     echarts_macarons_js = ''

exampleSite/zh/content/posts/test.md

@@ -314,3 +314,9 @@ int a = 1;
 $$ c = \pm\sqrt{a^2 + b^2} $$
 
 Left \\( c = \pm\sqrt{a^2 + b^2} \\) Right
+
+Left $ c = \pm\sqrt{a^2 + b^2} $ Right
+
+$ \ce{CO2 + C -> 2 CO} $
+
+$ \ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-} $